#include <iostream>
using namespace std;

const int N = 1e3 + 10;
int n,m,q;

long long a[N][N],f[N][N]; 

int main(){
	cin >> n >> m >> q;
	for(int i = 1;i <= n;i++){
		for(int j = 1;j <= m;j++){
			cin >> a[i][j];
			f[i][j] = f[i][j - 1] + f[i - 1][j] - f[i - 1][j - 1] + a[i][j];
		}
	}
	
	while(q--){
		int x1,y1,x2,y2;
		cin >> x1 >> y1 >> x2 >> y2;
		cout << f[x2][y2] - f[x2][y1 - 1] - f[x1 - 1][y2] + f[x1 - 1][y1 - 1] << endl;
	}
	return 0;
}
